I seem to have gotten my Diablo 3 in my WoW! Like chocolate and peanut butter, they belong together. In all seriousness, if you are looking for a lightweight themed interface for World of Warcraft as we approach the Diablo 3 release, this is the one. That way when you are playing WoW, you feel like you are in Diablo 3 and when you are in Diablo 3… ok you get it.
Find it here on WoWInterface (Roth UI by Zork): http://www.wowinterface.com/downloads/info9175-RothUIDiablo.html